Loom.



INVENTORS 2 Sneet--Sheet `I.

Patented Feb. 20, 1900.

Y A. & S. WIDMER.

(Application led Mar. 21, 1899.)

l l e 2, 1777. 3.

THE NORRIS PEYERS C0 PHOTO LIHQ., WASHINGTON. D. l24

(No Modei.)

wlTNEssEs:

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Np. 643,704. Patented Feb. zo, |900. A. & s. wmMEn.

LOOM.

(Application led Mar. 21, 1899,)

2 Sheets-Sheet 2.

(No Model.)

llNVENTRS ATTOR N EYS u. wAsMmmoN, n. c.

UNITED STATES PMENT FFIC.

ADOLPH WIDMER AND SAMUEL WIDMER, OF PATERSON, NEW JERSEY:

LOOM.

SPECIFICATION forming part of Letters Patent N o. 643,704, dated February 20, 1900.

Application filed March 21, l1899. Serial No. 709,894. (No model.)

T0 @ZZ whom, t may concern.'

Be it known'that we, ADoLPH WIIDMEAR and SAMUEL WIDMER, citizens of the United States, residing in Paterson, in the county of Passaic and State of New Jersey, have i11-v vented certain new and useful Improvements in Looms; and we do Vhereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to looms, and particularly to narrow-ware looms; and it consists in certain improvements in that portion of a loom of this'nature comprising the batten, the shuttles, the shuttle-blocks, and the shuttle-actuating means and in the combination and arrangement of these various parts, substantially as will be hereinafter pointed out, and finally embodied in the clauses of the claim.

The objects of our invention are to so construct and arrange the aforementioned parts as, first, to prevent an undue dropping of the shuttle-noses; second, to reduce the friction and the consequent wear and tear upon the driving mechanism and incidentally to make the latter as noiseless aspossible, and, third, to insure the proper parting or opening of the shed and the clear passage therethrough of the shuttle.

The invention is fully illustrated in the accompanyingdrawings, wherein corresponding parts are indicated by like letters of reference, and wherein- Figure l is a front View of a portion of a hatten, several shuttle-blocks mounted thereon, two of the shuttles, and their actuating mechanism, the construction of a portion of the latter being disclosed by the removal of a part of the batten. Fig. 2 is a top plan View of a portion of what is shown in Fig. l. Fig. 3 is a vertical sectional view on the line a; as in Fig. l. Fig. 4t is an enlarged horizontal sectional view on the line y y in Fig. 1. Figs. 5 and 6 are top plan views of shuttles constructed in accordance with the principle of our invention, and Figs. 7 and 8 are views of certain details involved in our invention.

In said drawings, a designates the batteri,

to the back of which is secured, as by screws a', a series of vertical lathe-plates a2, connected near their upper ends by a connecting-strip d3 and near the top of the batten by another strip a4, which forms with said hatten and the lathe-plates a series of pockets for the reception of the lower ends of the reeds a5, (shown in dotted lines in Fig. 1,) said reeds being adapted to be held in place by a clamp a6, secured to the upper strip a3. The construction just described is old and welllknown and need not be more particularly referred to.

b designates the shuttle-blocks. Each of said shuttle-blocks consists of two sections, the main or rear one, b', of which has its lower front portion removed to form a recess for the reception of the other one, h2, said sections being secured together by screws b3, inclosed in thimbles b4, that penetrate said sections. These screws and other screws also lettered b3 secure the shuttle-blocks to the lathe-plates. In one of said sections, preferably the rear one, is formed a cavity b5 for the reception of each of the shuttle-driving pinions c, hereinafter to be more particularly referred to, said pinions being preferably journaled upon the thimbles b4 and having their peripheries projecting slightly beneath the lower surfaces of the blocks.

CZ denotes a longitudinal groove formed in the top surface of the hatten beneath the seriesfof shuttle-blocks and coincident with the cavities b5, provided therein for the reception of the pinions. In said groove d is arranged the actuating rack-bar e for the several pinions, with the teeth of which its own teeth are in engagement. It is .very desirable, as is well known to those skilled in the art, that this rack-bar be constructed of soft wood, while the batten itself is of hard wood. At present, therefore, there is considerable and material wear of the rack-bar, owing to the softness of the wood of which it is composed. To overcome this and to render the rack-bar as easily movable as possible, we insert metallic strips e between the lower surface of the rack-bar and the corresponding surface of the groove d, and we preferably insert these metallic strips in a longitudinal channel e2 in the rack-bar, securing them to the latter by screws or any other suitable devices. As

IOO

shown in the drawings, there is a series of these strips, said strips being spaced and each being comparatively short. The object of this arrangement is to preserve sufficient flexibility in the rack-bar under all conditions, as would probably not be the case if a single strip were employed. The strips are spaced so as to form pockets, in which the particles of wood-dust that may in some slight measure be produced by a continual friction of the parts may collect. Furthermore, the insertion of these metallic strips between the rackbar and the bottom of the groove in the batten materially reduces the noise arising from this portion of the mechanism when in operation.

Each pinion c consists of a peripherallytoothed disk composed of wood, papier-mch or other suitable material, having on each of its faces a hub or bushing c', each hub or bushing being provided with a projection c2, received by a corresponding recess or cavity c3 in the face of the pinion. This bushing we prefer to form out of rawhide, the object being not only7 to provide a hard and durable bearing for the pinions, but also to render them self-lubricating owing t o the oily nature of the rawhide, and thus obviate the whistling sound that usually accompanies the rapid rotation of the pinions. As has been before remarked, the pinions are journaled upon the sleeves or thimbles b4, and for this purpose each pinion isprovided with a central bore c, which extends through the pinion proper and its two hubs or bushings. In order to accommodate the two bushings of each pinion, we eut away the adjoining portion of each section of the block, so as to form recesses e5; but only enough is cut away to admit the bushings, which are adapted to abut against the adjoining surfaces of the sections and prevent the faces of the pinions from coming into contact with said surfaces.

The shuttle-races consist. of channels g, formed in the front face of each shuttle-block, each channel being shown in Fig. 3 as having appreciable width and as having upper and lower grooves g' g2 communicating with it and situated at the back thereof. The lower edge g3 of each of said channels is cnt away to form another groove gt Between the grooves g and g3 there is thus produced a widened bearing-surface g5. It should be remarked that the channels are formed between the adjoining edges of the two sections of the shuttle-blocks. The above arrangement of the races is provided where the shuttles are curved and the races are correspondingly so. Where a straight shuttle is employed, the backs of the channels forming the races are open, according to the well-known construction, each shuttle-block thus coinprising a section above the race and ltwo sections below the same.

7L6 is a screw projecting into each portion Q7 of the shuttle-block, which stands in relief between the races g each side of their intersection, said screw being provided to afford strength to this portion of the block.

In Figs. 5 and G, respectively, we show a curved shuttle and a straight shuttle adapted to be used in connection with the mechanism heretofore described. The runner portion of the shuttle (shown in Fig. 5) is provided in both its upper and its lower surface with a widened groove L, disposed correspondingly to the widened bearing-surfaces of the shuttle-races, a flange h2 being formed in each runner each side of both of its grooves and adapted to tit in the corresponding grooves in the shuttle-races. The rack h3 of each shuttle is situated in the under groove 7L slightly nearer the back of the runner than the front thereof, thus producing a widened bearing-surface h4, which coacts with the corresponding portion g of the lower surface of the shuttle-race. It should be remarked, moreover, that by having the rack-bar groove in the runner slightly spaced from its lower rear ange and providing the groove g2 in which said lower rear flange works said rear flange is protected from the pinions by the intervening portion of the shuttle-block thus formed by said groove.

It will be observed that each point of the shuttle-runner is brought as near as possible to the plane of the back of the latter, the object of this being to have the points of the shuttle as far away as possible from the line of convergence of the shed and at the point of the maximum width of that portion of the opening in said shed through which the shuttle passes, thus insuring -a clear passage therethrough for the shuttle.

In the shuttle shown in Fig. G the disposition of the grooves h and flanges h2 of the runner thereof is the same as in the curved shuttle already described, the principal difference between the two shuttles residingin the relative disposition of their points, which in the straight shuttle are in the plane of the back of the runner itself. In other words, the back of the runner constitutes a perfect plane hw from end to end thereof. In the straight shuttle, therefore, the points of the runner are disposed as far as possible from the line of convergence in the shed, full advantage being therefore taken of the fact that the back of the runner in the straight shuttle does not have to be rounded off at its ends, as in the case of the curved shuttle.

XVe have hereinbefore referred to the fact that the channel which forms each shuttlerace may be open at the back, according to the well-known construction. If this is so, a straight shuttle constructed upon the principle of that shown in Fig. G will have its points absolutely as far away from the line of convergence of the shed as is possible.

It should be remarked that the runner of each shuttle should closely fit in each shuttlerace, so as to assist the widened bearing-surfaces in maintaining the shuttle in a horizontal position. Thus if the nose of the shuttle IOO IIC

is, as described, prevented from dropping and it is constructed, as also described, with its points at the maximum distance from the line of convergence of the shed the possibility of its interfering with the latter, and consequently doing serious damage, will be overcome.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a loom, the combination of a hatten having a rack-bar groove therein, a rack-bar arranged in said groove, and a series of metallic strips disposed between the bottoms of said rack-bar and groove, substantially as described.

2. In a loom, the combination of a batten having a rack-bar groove therein, a rack-bar arranged in said groove, and having a longitudinal channel in its lower face, and a series of spaced lnetallic strips disposed in the channel of said rack bar, substantially as described.

' 3. In a loom, the combination of a batten, shuttle-blocks having shuttle-races, mounted on said batten and each comprising two sections, one of said sections being provided with a transversely-extending recess and the other of said sections being arranged in said recess, and providing one of the walls of said races, shuttles, shuttle-actuating pinions journaled in said shuttle-blocks between the sections, and a rack-bar operatively arranged in said batten and engaging said pinions, the runner of each shuttle having anV upper and a lower centrally-disposed widened bearing-surface and flanges each side of said surfaces, and the races of each shuttle-block being shaped to conform to said runner, substantially as described.

4. In a loom, the combination of a batten, shuttle blocks having shuttle races and mounted on said batten, shuttles, the runner of each shuttle having an upper and a lower widened bearing-surface and a ange each side of its upper and under surface, and the races in each shuttle-block being shaped to conform to said runner, and revoluble pinions inclosed in said shuttle-blocks and adapted to actuate the shuttles, each runner having a rack adapted to be engaged by the teeth of the pinions and disposed in the under side of said runner and in contiguity to but spaced from the rear under ange thereof, and each pinion having laterally-projecting hubs abutting against the interior surface of its shuttlc-block and spacing the faces of said pinion therefrom, substantially as described.

5. The combination, with shuttle-blocks, having a pinion-recess and a hub-recess of greater depth than the pinion-recess, of pinions journaled therein, and self-lubricating hubs or rings of rawhide for said pinions, each hub having a reduced projection and an enlarged outer portion, one of the hubs being set into each face of each pinion with its projec tion extending into the same, and said hubs protruding from the face of the pinion so as to space the same from the adjacent surface of the shuttle and prevent contact of the pinion with the block, substantially as described.

In testimony that we claim the foregoing we have hereunto set our hands this 11th day of March, 1899.

ADOLPH WIDMER. SAMUEL WIDMER.

Vitnesses:

JOHN W. STEWARD, MARGARET G. BRITTON. 

